12 Clinical Trials for Various Conditions
The purpose of this study is to assess the effects of food on the amount of urate in the body after a single oral dose of inosine.
Human safety studies will be carried out to test whether red clover botanical dietary supplements used by peri- and post-menopausal women are safe to use with Food and Drug Administration (FDA)-approved drugs. To test this, a red clover dietary supplement (previously tested in women at the University of Illinois at Chicago without any harmful effects) will be given with four selected FDA-approved drugs to determine if the Licorice supplement can increase or decrease how these medications are absorbed, metabolized and excreted by the human body. Preclinical studies predict that the licorice supplement might affect the metabolism or break down of these probe drugs.
Human safety studies were carried out to test whether red clover botanical dietary supplements used by peri- and post-menopausal women are safe to use with Food and Drug Administration (FDA)-approved drugs. To test this, a red clover dietary supplement (previously tested in women at the University of Illinois at Chicago without any harmful effects) was given with four selected FDA-approved drugs to determine if the red clover supplement can increase or decrease how these medications are absorbed, metabolized and excreted by the human body. Preclinical studies predicted that the red clover supplement might affect the metabolism or break down of these probe drugs.
Human safety studies were carried out to test whether hop botanical dietary supplements used by peri- and post-menopausal women are safe to use with Food and Drug Administration (FDA)-approved drugs. To test this, a hop dietary supplement (previously tested in women at the University of Illinois at Chicago without any harmful effects) was given with four selected FDA-approved drugs to determine if the hop supplement can increase or decrease how these medications are absorbed, metabolized and excreted by the human body. Preclinical studies had predicted that the hop supplement might affect the metabolism or break down of these probe drugs.
Purpose: Grapefruit juice is one of the most extensively studied dietary/natural substances shown to interact with a variety of medications. However, unanswered questions remain regarding the causative ingredients and mechanisms underlying such drug-grapefruit juice interactions. Compounds in grapefruit juice called furanocoumarins have been established as major causative ingredients, which act by inhibiting the elimination (metabolism) of drugs, leading to increased circulating drug concentrations. Increased drug concentrations can in turn lead to increased drug potency or even toxicity. Grapefruit juice also has been shown, paradoxically, to decrease circulating concentrations of some drugs, including the non-sedating antihistamine agent, fexofenadine (Allegra), which undergoes negligible metabolism. Whether or not furanocoumarins mediate the decrease in fexofenadine concentrations is unknown. The purpose of the proposed study is to compare the effects of a "furanocoumarin-free" grapefruit juice with grapefruit juice on circulating concentrations of fexofenadine.
Type of Study: Single Ascending Doses (SAD) Study Objectives: To characterize the pharmacokinetic (PK) profile of JOTROL (resveratrol) following oral administration of SAD ranging from 200 mg up to a dose currently estimated at 1,000 mg, in healthy subjects. To evaluate the safety and tolerability of JOTROL To evaluate the effect of food on the PK profile of JOTROL. Study Design: Phase I, randomized, open-label, sequential SAD study with a food effect evaluation. Blood plasma and urine samples will be assessed for resveratrol and key metabolite content. Type of Control: No control Test Product: JOTROL (resveratrol) 100 mg resveratrol in 1000 mg softgel capsule for oral administration Dosage Regimen: Planned dose levels of resveratrol: 200 mg, 500 mg, and 1,000 mg. Following completion of each dose level, PK, safety, and tolerability data will be evaluated; dose levels may be adjusted. Route of Administration: Oral gelcaps with water Number of Subjects: 24 subjects will be included in Part 1; only 16 subjects, who completed Part 1, will be included in Part 2. Subjects: Healthy, non-smoker, adult males or females, ≥ 18 and ≤ 75 years of age Study Duration: Participation of each subject in this study should last approximately 1 to 1.5 months (for subjects participating in study Part 1 only) and 1.5 to 2 months (for subjects participating in both study parts).
The purpose of this is to evaluate the effect of food and the effect of a proton pump inhibitor (rabeprazole) on the pharmacokinetics of fruquintinib.
Ranitidine is an over-the-counter and prescription drug, which decreases the amount of acid secreted by the stomach. Some ranitidine medicines contain an impurity called N-nitrosodimethylamine (NDMA) at low levels. NDMA is classified as a probable human carcinogen (a substance that could cause cancer) based on results from laboratory tests. NDMA is a known environmental contaminant and found in water and foods, including meats, dairy products, and vegetables. The US Food and Drug Administration (FDA) has found levels of NDMA in some ranitidine products similar to the levels you would expect to be exposed to if you ate common foods like grilled or smoked meats. The ranitidine that will be used in this study has been tested twice (months apart) and shown to have stable NDMA levels well below the acceptable daily limit. Of note, the risk of NDMA with ranitidine is only relevant with prolonged chronic administration as at the acceptable limit, there is approximately a 1 in 100,000 chance of cancer after 70 years of exposure to that level. FDA has also conducted tests that simulate the potential formation of NDMA from ranitidine after it has been exposed to acid in the stomach with a normal diet. Results of these tests indicate that NDMA is not formed in typical stomach conditions. Similarly, if ranitidine is exposed to a simulated small intestinal fluid, NDMA is not formed. Other laboratory experiments suggest a combination of nitrites, such as found in processed meats, and an acidic environment may increase NDMA formation, however the levels of nitrites tested were very high. Separately, a previous study in 10 healthy volunteers showed that volunteers who received ranitidine had an increase in urinary NDMA excreted over 24 h. The level of increase was greater than would be expected from laboratory testing. This clinical study is being performed to determine if and how much NDMA is produced from ranitidine in the human body and whether nitrite-containing foods may increase formation of NDMA. The study will use a prescription dose of ranitidine (300 mg) to test whether there is increased urinary NDMA excretion levels over 24-hours after ranitidine administration in comparison to placebo when participants are administered low nitrite/NDMA meals and when subjects are administered high nitrite/NDMA meals. On 4 different days, each participant will receive ranitidine or placebo with high nitrite/NDMA meals and ranitidine or placebo with low nitrite/NDMA meals.
This is a single center, open-label, single-dose, 2-way randomized crossover design in which 12 healthy subjects will be randomized to 1 of 2 treatment sequences (AB or BA). Treatments A and B will consist of single oral dose of tablet formulation (1.0 mg as 1 x 1.0 mg) in the fasted and fed state administered with approximately 240 mL of water. Each period will be separated by a washout interval of 4 days.
This is an open-label, randomized, single-dose, 3-period crossover, Williams' design, food-interaction (fasted and fed arms) study conducted in healthy subjects.
This is a 3-cohort, multicenter, Phase 1 study of the effect of tesetaxel, an investigational, orally administered taxane, on the corrected QT (QTc) interval and the potential effect of food, a cytochrome P450 (CYP) 3A inhibitor (itraconazole), and a CYP3A inducer (rifampin) on tesetaxel pharmacokinetics (PK) in adult patients with advanced solid tumors.
To assess the safety of single oral doses of 1592U89 (abacavir succinate, ABC) administered to HIV-positive individuals. To determine the pharmacokinetics of 1592U89 after single oral doses. To determine the effects of food on the bioavailability of 1592U89.